{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:PVK6QK7D32R5L6SBQYKVM26BAV","short_pith_number":"pith:PVK6QK7D","schema_version":"1.0","canonical_sha256":"7d55e82be3dea3d5fa418615566bc1056bbfb06c643eaae607b6dae7d56e1b96","source":{"kind":"arxiv","id":"1403.1167","version":1},"attestation_state":"computed","paper":{"title":"Type II-Plateau supernovae as metallicity probes of the Universe","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.SR","authors_text":"C. P. Gutierrez, D. J. Hillier, F. Ley, G. Folatelli, J. P. Anderson, L. Dessart, M. Hamuy, M. M. Phillips, M. Stritzinger, N. B. Suntzeff, N. Morrell, S. E. Persson, T. Lanz, W. L. Freedman","submitted_at":"2014-03-05T15:47:12Z","abstract_excerpt":"We explore a method for metallicity determinations based on quantitative spectroscopy of type II-Plateau (II-P) supernovae (SNe). For consistency, we first evolve a set of 15Msun main sequence stars at 0.1, 0.4, 1, and 2 x the solar metallicity. At the onset of core collapse, we trigger a piston-driven explosion and model the resulting ejecta and radiation. Our theoretical models of such red-supergiant-star explosions at different metallicity show that synthetic spectra of SNe II-P possess optical signatures during the recombination phase that are sensitive to metallicity variations. This sens"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1403.1167","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-03-05T15:47:12Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"d9249e93670c5b670ea71e76ed6552dcd94c8efcb700c539031d98f248da391f","abstract_canon_sha256":"d0d9441b5cfd47cbad39d3e72ce8f4eb3a4e3349c6f04c2c605bab5fc5c4d59f"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:44:19.535387Z","signature_b64":"GpFKilETtEvjRLAeMjp4YfC29aTX07+/PeLJJvQbFxScxlDMROrJNd70V+GxKf+rDXm5e20yCeqsF1nMVrSkAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7d55e82be3dea3d5fa418615566bc1056bbfb06c643eaae607b6dae7d56e1b96","last_reissued_at":"2026-05-18T01:44:19.534544Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:44:19.534544Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Type II-Plateau supernovae as metallicity probes of the Universe","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.SR","authors_text":"C. P. Gutierrez, D. J. Hillier, F. Ley, G. Folatelli, J. P. Anderson, L. Dessart, M. Hamuy, M. M. Phillips, M. Stritzinger, N. B. Suntzeff, N. Morrell, S. E. Persson, T. Lanz, W. L. Freedman","submitted_at":"2014-03-05T15:47:12Z","abstract_excerpt":"We explore a method for metallicity determinations based on quantitative spectroscopy of type II-Plateau (II-P) supernovae (SNe). For consistency, we first evolve a set of 15Msun main sequence stars at 0.1, 0.4, 1, and 2 x the solar metallicity. At the onset of core collapse, we trigger a piston-driven explosion and model the resulting ejecta and radiation. Our theoretical models of such red-supergiant-star explosions at different metallicity show that synthetic spectra of SNe II-P possess optical signatures during the recombination phase that are sensitive to metallicity variations. This sens"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.1167","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1403.1167","created_at":"2026-05-18T01:44:19.534687+00:00"},{"alias_kind":"arxiv_version","alias_value":"1403.1167v1","created_at":"2026-05-18T01:44:19.534687+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.1167","created_at":"2026-05-18T01:44:19.534687+00:00"},{"alias_kind":"pith_short_12","alias_value":"PVK6QK7D32R5","created_at":"2026-05-18T12:28:43.426989+00:00"},{"alias_kind":"pith_short_16","alias_value":"PVK6QK7D32R5L6SB","created_at":"2026-05-18T12:28:43.426989+00:00"},{"alias_kind":"pith_short_8","alias_value":"PVK6QK7D","created_at":"2026-05-18T12:28:43.426989+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/PVK6QK7D32R5L6SBQYKVM26BAV","json":"https://pith.science/pith/PVK6QK7D32R5L6SBQYKVM26BAV.json","graph_json":"https://pith.science/api/pith-number/PVK6QK7D32R5L6SBQYKVM26BAV/graph.json","events_json":"https://pith.science/api/pith-number/PVK6QK7D32R5L6SBQYKVM26BAV/events.json","paper":"https://pith.science/paper/PVK6QK7D"},"agent_actions":{"view_html":"https://pith.science/pith/PVK6QK7D32R5L6SBQYKVM26BAV","download_json":"https://pith.science/pith/PVK6QK7D32R5L6SBQYKVM26BAV.json","view_paper":"https://pith.science/paper/PVK6QK7D","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1403.1167&json=true","fetch_graph":"https://pith.science/api/pith-number/PVK6QK7D32R5L6SBQYKVM26BAV/graph.json","fetch_events":"https://pith.science/api/pith-number/PVK6QK7D32R5L6SBQYKVM26BAV/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PVK6QK7D32R5L6SBQYKVM26BAV/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PVK6QK7D32R5L6SBQYKVM26BAV/action/storage_attestation","attest_author":"https://pith.science/pith/PVK6QK7D32R5L6SBQYKVM26BAV/action/author_attestation","sign_citation":"https://pith.science/pith/PVK6QK7D32R5L6SBQYKVM26BAV/action/citation_signature","submit_replication":"https://pith.science/pith/PVK6QK7D32R5L6SBQYKVM26BAV/action/replication_record"}},"created_at":"2026-05-18T01:44:19.534687+00:00","updated_at":"2026-05-18T01:44:19.534687+00:00"}